in line vs subsequential

in line

adj
  • assuming a position in the future. 

  • Suitable or appropriate; keeping with expectations, norms, ideals, or rules. 

  • Positioned in a straight line. 

adv
  • one behind another; in a queue 

subsequential

adj
  • subsequent 

  • Relating to a subsequence 

How often have the words in line and subsequential occurred in a corpus of books? (source: Google Ngram Viewer )